Import latest app updates from streamline

An updated set of source files and initialization was provided by streamline to
address issues observed during initial testing. These files have been updated in
order to generate a new set of app images.

docker/streamline-src/vendor/league/commonmark/src/CommonMarkConverter.php

@@ -1,46 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-/*
- * This file is part of the league/commonmark package.
- *
- * (c) Colin O'Dell <colinodell@gmail.com>
- *
- * Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
- *  - (c) John MacFarlane
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace League\CommonMark;
-
-use League\CommonMark\Environment\Environment;
-use League\CommonMark\Extension\CommonMark\CommonMarkCoreExtension;
-
-/**
- * Converts CommonMark-compatible Markdown to HTML.
- */
-final class CommonMarkConverter extends MarkdownConverter
-{
-    /**
-     * Create a new Markdown converter pre-configured for CommonMark
-     *
-     * @param array<string, mixed> $config
-     */
-    public function __construct(array $config = [])
-    {
-        $environment = new Environment($config);
-        $environment->addExtension(new CommonMarkCoreExtension());
-
-        parent::__construct($environment);
-    }
-
-    public function getEnvironment(): Environment
-    {
-        \assert($this->environment instanceof Environment);
-
-        return $this->environment;
-    }
-}